Textbook Question
Explain how the members of the endomembrane system interact.
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Ch. 3 The Cell
Amerman2nd EditionHuman Anatomy & PhysiologyISBN: 9780136873822
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Table of contents
- Ch. 1 Introduction to Anatomy and Physiology26
- Ch. 2 The Chemistry of Life38
- Ch. 3 The Cell55
- Ch. 4 Histology47
- Ch. 5 The Integumentary System30
- Ch. 6 Bones and Bone Tissue36
- Ch. 7 The Skeletal System40
- Ch. 8 Articulations19
- Ch. 9 The Muscular System36
- Ch. 10 Muscle Tissue and Physiology29
- Ch. 11 Introduction to the Nervous System and Nervous Tissue28
- Ch. 12 The Central Nervous System42
- Ch. 13 The Peripheral Nervous System41
- Ch. 14 The Autonomic Nervous System and Homeostasis31
- Ch. 15 The Special Senses39
- Ch. 16 The Endocrine System42
- Ch. 17 The Cardiovascular System I: The Heart30
- Ch. 18 The Cardiovascular System II: The Blood Vessels43
- Ch. 19 Blood32
- Ch. 20 The Lymphatic System and Immunity45
- Ch. 21 The Respiratory System27
- Ch. 22 The Digestive System27
- Ch. 23 Metabolism and Nutrition7
- Ch. 24 The Urinary System39
- Ch. 25 Fluid, Electrolyte, and Acid-Base Homeostasis39
- Ch. 26 The Reproductive System10
- Ch. 27 Development and Heredity5
Chapter 3, Problem 11c
Mark the following statements about the cytoskeleton as true or false. If a statement is false, correct it to make a true statement.
Microtubules are hollow tubes that align organelles and shuttle them to their proper places in the cell.
Verified step by step guidance1
Step 1: Understand the role of microtubules in the cytoskeleton. Microtubules are hollow tubes made of tubulin proteins that provide structural support, assist in intracellular transport, and play a role in cell division.
Step 2: Evaluate the statement: 'Microtubules align organelles and shuttle them to their proper places in the cell.' This is partially correct, as microtubules do assist in the transport of organelles and vesicles within the cell, but they do not 'align' organelles in a fixed position.
Step 3: Correct the false part of the statement. A more accurate version would be: 'Microtubules are hollow tubes that assist in the transport of organelles and vesicles within the cell, ensuring proper intracellular organization.'
Step 4: Confirm the corrected statement aligns with the known functions of microtubules, such as their role in intracellular transport via motor proteins like kinesin and dynein.
Step 5: Mark the original statement as false and provide the corrected version as the true statement.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Cytoskeleton Structure
The cytoskeleton is a dynamic network of protein filaments and tubules that provides structural support to the cell. It consists of three main components: microfilaments, intermediate filaments, and microtubules, each playing distinct roles in maintaining cell shape, enabling movement, and organizing cellular components.
Recommended video:
06:05
Introduction to the Cytoskeleton
Microtubules
Microtubules are cylindrical structures made of tubulin protein subunits. They are essential for various cellular functions, including maintaining cell shape, facilitating intracellular transport, and forming the mitotic spindle during cell division. Their hollow nature allows them to be flexible yet strong, supporting organelle positioning and movement.
Recommended video:
03:14Cilia & Flagella
Intracellular Transport
Intracellular transport refers to the mechanisms by which materials are moved within a cell. Microtubules serve as tracks for motor proteins, such as kinesin and dynein, which transport organelles, vesicles, and other cargo to specific locations, ensuring proper cellular function and organization.
Recommended video:
02:37Active Transport
Related Practice
Textbook Question
Mark the following statements about the cytoskeleton as true or false. If a statement is false, correct it to make a true statement.
Centrioles are part of the centrosome from which microtubules originate.
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Textbook Question
Mark the following statements about the cytoskeleton as true or false. If a statement is false, correct it to make a true statement.
Endocytosis, exocytosis, muscle cell contraction, and cellular 'crawling' are all mediated by intermediate filaments.
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Textbook Question
Mark the following statements about the cytoskeleton as true or false. If a statement is false, correct it to make a true statement.
The cilia found on sperm cells propel the cells through a liquid medium.
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Textbook Question
Mark the following statements about the cytoskeleton as true or false. If a statement is false, correct it to make a true statement.
Actin filaments combine with myosin motor proteins to provide the cell with mechanical strength.
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Textbook Question
Mark the following statements about the cytoskeleton as true or false. If a statement is false, correct it to make a true statement.
Intermediate filaments are ropelike structures composed of tubulin proteins.
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